Origin: C(7), C8, T1 (medial cord of Brachial plexus) Course: Motor innervation: 1. Forearm: Flexor carpi ulnaris (weakness of ulnar deviation and flexion of wrist), Medial half of flexor digitorum profundus (branches near the elbow) 2. Hand: branches near wrist Sensory innervation: Palmar branch at forearm and Digital branch at wrist…
Category: PGMEE, MRCS, USMLE, MBBS, MD/MS
Medical knowledge in bullet points with understandable language, simplified images and graspable mnemonics.
PGMEE, MRCS, USMLE, MBBS, MD/MS
Median nerve Anatomy : Course and Innervation
Origin C5-T1 (lateral and medial cords of Brachial plexus) Course Motor innervation Muscles supplied: 2 lateral lumbricals, 3 thenars, 3Ps (2 pronator and 1 palmaris) and 4 flexors. Sensory innervation Clinical correlation 1. Martin-Gruber motor connection: occur in 17% of individuals between median and ulnar nerves resulting in variable innervations…
PGMEE, MRCS, USMLE, MBBS, MD/MS
Dental eruption : Mnemonic
Primary teeth begin eruption at around 6 months and Permanent teeth at around 6 years. In general, lower tooth erupts before it’s upper counterpart with few exceptions (lower before upper rule). Age of 6-12 years is a period of mixed dentition (eruption of permanent 1st molar to eruption of 2nd…
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Developmental Milestones : Mnemonic
Principles of development Development proceeds from the head downward (cephalocaudal principle). Development proceeds from the center of the cody outward (proximodistal development). Development depends on maturation and learning. Development proceeds from the simple to the more complex. Growth and development is a sequential and continuous process. Growth and development proceed…
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Neurovascular Relations in Anatomy
Porta hepatis Mnemonic: DAVE From anterior to posterior: Ducts (right and left hepatic duct branches) Arteries (right and left hepatic artery branches) Vein (portal vein) Epiploic foramen (foramen of Winslow) Femoral triangle or Scarpa’s triangle Mnemonic: NAVEL From lateral to medial Nerve (femoral nerve and femoral branch of genitofemoral nerve)…
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Choledochal Cysts : Mnemonic for Todani Classification
Todani Classification of Choledochal cysts Mnemonic: Consider I is “Extrahepatic” and V is “Intrahepatic”, then – Type I, II and III = Extrahepatic Type IV = Extrahepatic + Intrahepatic Type V = Intrahepatic Most common: Type I 2nd most common: Type IV Type I-III: Extrahepatic Mnemonic: 123 EDC Type…
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Calot’s triangle : Mnemonic
Synonyms: Calot triangle, Cystohepatic triangle Boundaries: Cysto-hepatic triangle (Budde-Rocko triangle): Calot’s triangle as described in modern surgery: Mnemonic: 3 C 1. Cystic duct 2. Common hepatic duct 3. Cystic artery Contents: Importance: The cystic artery and the duct have to be clearly defined to obtain the ‘critical view of safety’. These…
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Site of absorption of Vitamins, Minerals and Nutrients
Duodenum Calcium Thiamine Iron Protein Carbohydrate Jejunum/Proximal ileum Fat Vitamins A, D, E, K Water-soluble vitamins Folate Essential minerals Copper Zinc Phosphorous Magnesium Terminal ileum Vitamin B12 Bile salts Reference: The SAGES Manual: A Practical Guide to Bariatric Surgery edited by Ninh T. Nguyen, Eric DeMaria, Sayeed Ikramuddin, Matthew M. Hutter